Electr. operating equipment for areas at risk of gas explosion:
Part 28: Protection of equipment and transfer systems
which work with optical radiation
Electr. operating equipment for areas at risk of gas explosion:
Part 31: Protection against dust explosion through housing "t"
4 Assembly
Ensure that the Ethernet switches and media converters are securely assembled on a secure
supporting structure. The assembly location must be chosen so that the device is not at risk
from falling parts or knocks.
On the Ethernet switches and media converters there are, in the corners, four holes for fas-
tening, so the device does not have to be opened for assembly.
4.1 Hole Plan
Page | 26
Figure 2
EN 60 079-28: 2007
EN 60 079-31: 2009